Hi Michael, On 17/10/2020 16:51, Michael Laufer wrote: > Do you know if there can expect any performance gains by compiling > Openmpi with cuda support?
In general the CUDA awareness only helps cases which are heavily strong scaled, where performance is limited by the interconnect. If, whilst running a simulation, nvidia-smi reports that all four GPUs are close to 100% utilisation then this is unlikely to be the case. Regards, Freddie. -- You received this message because you are subscribed to the Google Groups "PyFR Mailing List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/pyfrmailinglist/758c46e0-5a9a-37fc-b644-9bda43b62fb0%40witherden.org.
